According to I.S. : 456, the number of grades of concrete mixes, is 3 4 5 6

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Civil Engineering ‣ Concrete Technology Comments

Question
According to I.S. : 456, the number of grades of concrete mixes, is
Options
A. 3
B. 4
C. 5
D. 6
E. 7

Correct Answer

7

Concrete Technology problems

Search Results

3. The bulk density of aggregates does not depend upon :
Options
A. size and shape of aggregates
B. specific gravity of aggregates
C. grading of aggregates
D. size and shape of the container
E. none of these.

5. Pick up the correct proportions of chemical ingredients of cement
Options
A. Lime : Silica : Alumina : Iron oxide : 63 : 22 : 6 : 3
B. Silica : Lime : Alumina : Iron oxide : 63 : 22 : 6 : 3
C. Alumina : Silica : Lime : Iron oxide : 63 : 22 : 6 : 3
D. Iron oxide : Alumina : Silica : Lime : 63 : 22 : 6 : 3

7. The equation which is obtained by multiplying each equation by the coefficient of its un-knowns and by adding the equations thus formed, is known as
Options
A. observation equation
B. conditional equation
C. normal equation
D. none of these.

8. Polaris is usually observed for the determination of the azimuth when it is
Options
A. at culmination
B. at elongation
C. neither at culmination nor at elongation
D. either at culmination or at elongation.

9. The parallax equation is applicable to entire overlap of the photographs only if parallax is measured
Options
A. normal to base line
B. parallel to base line
C. both (a) and (b)
D. neither (a) nor (b).

10. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is
Options
A. altitude and azimuth system
B. declination and hour angle system
C. declination and right ascension system
D. declination and altitude system
E. azimuth and declination system.

Comments

More in Civil Engineering: